4) a) Explain how weak form, semi-strong form and strong form efficiencies are related to each other. Draw a graphical illustration as part of your answer. (3 marks) b) With $10,000 to invest, you decided to invest $6,000 in Asset A and the remaining money in Asset B. Given the following information, find the standard deviation for your portfolio. (3 marks) State Probability A B Boom 0.4 60% 20% Bust 0.6 -20% 35% c) A stock has a beta of 1.2 and an expected return of 21%. A risk-free asset currently earns 2.5%. If a portfolio of the two assets has a beta of 2.4, what are the portfolio weights? How do you interpret the weights for the two assets in this case? Explain. (4 marks) 4) a) Explain how weak form, semi-strong form and strong form efficiencies are related to each other. Draw a graphical illustration as part of your answer. (3 marks) b) With $10,000 to invest, you decided to invest $6,000 in Asset A and the remaining money in Asset B. Given the following information, find the standard deviation for your portfolio. (3 marks) State Probability A B Boom 0.4 60% 20% Bust 0.6 -20% 35% c) A stock has a beta of 1.2 and an expected return of 21%. A risk-free asset currently earns 2.5%. If a portfolio of the two assets has a beta of 2.4, what are the portfolio weights? How do you interpret the weights for the two assets in this case? Explain. (4 marks)